What will be the curve lead for a 1 in 8.5 turnout taking off from a straight BG track?

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JKSSB JE CE 2015 Official Paper
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  1. 28.49 m
  2. 21.04 m
  3. 14.24 m
  4. 7.45 m

Answer (Detailed Solution Below)

Option 1 : 28.49 m
Free
ST 1: JKSSB JE - Surveying
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20 Questions 20 Marks 20 Mins

Detailed Solution

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Concept:

Curve lead = 2GN

Where, G = Gauge of track

N = Number of crossing

Calculation:

Given,

N = 8.5

Gauge length for BG track (G) = 1.676 m

Curve lead = 2GN = 2 × 1.676 × 8.5 = 28.49 m
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